Insert vacuum fixing structure for die-casting die
By designing an insert vacuum fixing structure, the surface defects caused by insert positioning in traditional die-casting molds are solved, achieving stable adsorption and vacuum sealing of the insert, reducing gas flow resistance and energy loss, and improving the product's aesthetics and service life.
Patent Information
- Application Number
- CN202511337552.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-18
- Publication Date
- 2025-11-07
AI Technical Summary
Traditional die-casting insert positioning methods expose non-functional surfaces of the product, resulting in surface defects such as flow marks and burrs, which affect aesthetics and customer acceptance. In addition, additional polishing is required, which leads to structural complexity and high costs.
The device employs an insert vacuum fixing structure. Through the design of the adsorption mechanism and the communication mechanism, it uses the alternating arrangement of balls and micropores to reduce gas flow resistance. Combined with the filter plate to filter impurities, it achieves stable adsorption of the insert and vacuum sealing, avoiding local high friction areas and eddy current generation.
It improves the adsorption and fixation effect of the insert, reduces gas flow resistance and energy loss, extends the maintenance cycle of the device, and ensures the aesthetics and stability of the product.
Smart Images
Figure CN120901249A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of die casting molds, in particular to a vacuum fixing structure for insert of die casting mold. BACKGROUND
[0002] With the continuous improvement of the performance of electronic equipment, the heat generated during its operation is also increasing, and an efficient heat dissipation system has become the key to ensuring the stable operation of electronic equipment and prolonging its service life. The welding of copper blocks after die casting has problems such as complex structure and high cost.
[0003] The traditional die casting insert needs to be positioned on the upper and lower and left and right four sides, which will cause the insert on the non-acting surface of the product to be exposed. The edge of the exposed insert is prone to form surface defects such as flow marks, burrs or scratches, which affects the product appearance and customer acceptance standards. Some recesses or cold separation defects are more obvious in the exposed area of the non-acting surface, and additional polishing treatment is required, which causes a gap between the insert and the body and causes leakage problems. SUMMARY
[0004] In view of the deficiencies of the prior art, the present application provides a vacuum fixing structure for insert of die casting mold, which can reduce one front positioning surface and ensure that the insert is only exposed on one side of the product mounting surface after die casting molding, and the other side of the insert is fully wrapped with aluminum alloy. The problem of the A surface of the insert not being allowed to be exposed is solved.
[0005] To solve the above technical problems, the present application provides the following technical solutions: A vacuum fixing structure for insert of die casting mold, comprising a movable mold frame and a movable mold core used as a die casting mold body, a insert body is installed on one side of the movable mold core, a die casting product is installed on one side of the insert body, an adsorption mechanism for adsorbing and positioning the insert body is arranged between the movable mold frame and the movable mold core, the adsorption mechanism comprises a connection port, a first communication straight pipe is fixedly connected to one end of the connection port, a communication elbow pipe for slowing down the pollution of the vacuum channel is installed at one end of the first communication straight pipe, which is in the shape of "S" to reduce gas flow resistance and avoid forming a single large bend, a second communication straight pipe is installed at one end of the communication elbow pipe, a plurality of groups of six-arranged and distributed balls are movably installed on the inner walls of the first communication straight pipe and the second communication straight pipe to reduce gas flow resistance, and a plurality of micro-holes with spiral gradient distribution are formed on the inner walls of the first communication straight pipe and the second communication straight pipe, and the balls and the micro-holes are alternately arranged. Further, a communication mechanism for communicating and conveying gas is arranged at one end of the connection port, a branch pipe is installed on the communication mechanism, and a suction pipe for adsorbing the insert body and a blowing pipe for facilitating the ejection of the die casting product are fixedly connected to the branch pipe, and a gas valve is installed on the suction pipe and the blowing pipe.
[0006] Further, the communication mechanism includes a first port in communication with the connection port, one side of the first port is fixedly connected with a fixed ring, a coarse filter plate is installed in the fixed ring, a connection shell is installed on one side of the fixed ring, a fine filter plate is installed in the connection shell, a second port is fixedly communicated at one end of the connection shell, the connection shell and the fixed ring are connected through bolts, and the second port is in communication with the branch pipe.
[0007] Further, one end of the second communication straight pipe is communicated and plugged with a bottom block, one side of the bottom block is fixedly connected with a connecting piece, and one end of the connecting piece is fixedly connected with an auxiliary assembly for effectively adsorbing the insert body.
[0008] Further, the auxiliary assembly includes a support rod installed on one side of the connecting piece through a second screw, an airflow channel is formed in the support rod, a support block is fixedly connected to one end of the support rod, two through holes are formed in the support block, a connecting ring is installed on one side of the support block and penetrates the two through holes, a fitting plate is fixedly connected to one side of the connecting ring, an embedding groove is formed in the fitting plate, and a plurality of air holes are formed in the embedding groove area of the fitting plate.
[0009] Further, one side of the movable mold core is provided with a clamping groove for clamping the bottom block, a through groove for plugging the connecting piece is formed in the clamping groove, an installation hole for plugging the support rod is formed in the through groove, an installation groove is formed in the clamping groove, and a first screw connected with the installation groove is installed on the bottom block.
[0010] Further, one end of the first communication straight pipe and the second communication straight pipe close to the communication elbow pipe is provided with a threaded groove, nuts for connecting with the threaded groove are installed at both ends of the communication elbow pipe, and raw material belts are installed in the two nuts.
[0011] Further, the inner walls of the first communication straight pipe, the communication elbow pipe and the second communication straight pipe are provided with a DLC coating for reducing particle adhesion.
[0012] By means of the above technical scheme, the present application provides a vacuum fixing structure for an insert of a die casting mold, which has at least the following beneficial effects: 1. The vacuum fixing structure for the insert of the die casting mold, by means of the adsorption mechanism, the device can adsorb and fix the fitting plate, the rolling friction is replaced by the sliding friction through the balls in the first communication straight pipe and the second communication straight pipe, the contact resistance of the gas flow and the inner wall of the pipe can be reduced, the energy loss can be reduced, the stress concentration caused by the pressure fluctuation in the pipe can be dispersed through the microporous spiral gradient distribution, the fatigue life can be prolonged, the gas flow resistance can be effectively reduced through the cooperation of the balls and the micropores, the ball resonance can be avoided, the staggered layout of the ball array and the hole groove can destroy the vortex generation, the boundary layer can be more stable, the local high friction area can be avoided, and the stability of the gas flow laminar flow can be optimized.
[0013] 2、The vacuum fixing structure for insert of die casting mold, through the setting of auxiliary assembly, the adsorption effect of insert body and adsorption surface is enhanced, through the gap between connecting piece and through slot, the gas flow channel enters into the through port, through connecting ring and adhering plate, the gas is accumulated in connecting ring, through multiple evenly distributed air holes, the gas can adsorb insert body from multiple points, the adsorption fixing effect of insert body is improved.
[0014] 3、The vacuum fixing structure for insert of die casting mold, through the setting of connecting mechanism, the gas can effectively filter impurities when inhaling, the coarse filter plate intercepts large particle impurities, the fine filter plate carries out deep purification, realizes that pollution impurities are intercepted gradually, and the combination of the two can reduce fluid turbulent flow intensity, through the bolt, the connecting shell and the fixed ring can be conveniently disassembled and replaced, the maintenance cycle is effectively prolonged, and the stability of system vacuum degree is maintained. BRIEF DESCRIPTION OF DRAWINGS
[0015] The drawings described herein are used to provide further understanding of the present application and form a part of the present application: Figure 1 It is a three-dimensional structure schematic view of the present application; Figure 2 It is a structure schematic view of the movable mold frame and movable mold core of the present application; Figure 3 It is a structure schematic view of the through slot of the present application; Figure 4 It is a structure schematic view of the air suction pipe and air blowing pipe of the present application; Figure 5 It is an explosion view of the connecting mechanism of the present application; Figure 6 It is a structure schematic view of the adsorption mechanism of the present application; Figure 7 It is a structure schematic view of the ball and micropore of the present application; Figure 8 It is an explosion view of the auxiliary assembly of the present application.
[0016] Reference signs: 1, branch pipe; 2, movable mold frame; 3, first screw; 4, bottom block; 5, connecting piece; 6, second screw; 7, auxiliary assembly; 701, support rod; 702, air flow channel; 703, support block; 704, through hole; 705, connecting ring; 706, fit plate; 707, embedding groove; 708, air hole; 8, movable mold core; 9, embedded main body; 10, die casting product; 11, clamping groove; 12, through groove; 13, mounting hole; 14, adsorption mechanism; 1401, connecting port; 1402, first communication straight pipe; 1403, communication elbow pipe; 1404, nut; 1405, second communication straight pipe; 1406, ball; 1407, micropore; 15, communication mechanism; 1501, connecting shell; 1502, second port; 1503, fine filter plate; 1504, coarse filter plate; 1505, bolt; 1506, fixing ring; 1507, first port; 16, air suction pipe; 17, air blowing pipe. DETAILED DESCRIPTION
[0017] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.
[0018] Some embodiments of the present application provide a vacuum fixing structure for an embedded part of a die casting mold.
[0019] Embodiment one: In order to unilaterally position the embedded main body 9, in combination with Figure 1 , Figure 2 , Figure 4 and Figure 6 and Figure 7 , a vacuum fixing structure for an embedded part of a die casting mold is proposed, in which a movable mold frame 2 and a movable mold core 8 are provided as a die casting mold main body, the movable mold core 8 is provided with an embedded main body 9 on one side, the embedded main body 9 is provided with a die casting product 10 on one side, and an adsorption mechanism 14 is provided between the movable mold frame 2 and the movable mold core 8, which is used for adsorbing and positioning the embedded main body 9, so as to avoid the exposure of the non-acting surface of the embedded main body 9.
[0020] In order to effectively adsorb and fix the insert body 9, the present application provides an adsorption mechanism 14, which is connected with a connecting port 1401, one end of the connecting port 1401 is fixedly connected with a first communicating straight pipe 1402, one end of the first communicating straight pipe 1402 is installed with a communicating elbow pipe 1403 for reducing pollution of the vacuum channel, which is in the shape of "S", one end of the communicating elbow pipe 1403 is installed with a second communicating straight pipe 1405, the first communicating straight pipe 1402 and the second communicating straight pipe 1405 are provided with threaded grooves at one end close to the communicating elbow pipe 1403, both ends of the communicating elbow pipe 1403 are installed with nuts 1404 for connecting with the threaded grooves, raw material belts are installed in the two nuts 1404, the inner walls of the first communicating straight pipe 1402 and the second communicating straight pipe 1405 are movably installed with a plurality of groups of rolling balls 1406 arranged in a hexagonal shape, which are used for reducing gas flow resistance, the inner walls of the first communicating straight pipe 1402 and the second communicating straight pipe 1405 are provided with micro-holes 1407 distributed in a spiral gradient, the rolling balls 1406 and the micro-holes 1407 are arranged alternately, the first communicating straight pipe 1402 and the communicating elbow pipe 1403 and the second communicating straight pipe 1405 can be conveniently disassembled through the threaded connection of the threaded grooves and the two nuts 1404, the raw material belts can effectively prevent gas leakage and ensure the sealing performance of the vacuum adsorption, the "S"-shaped communicating elbow pipe 1403 is used for reducing gas flow resistance and avoiding the formation of a single large bend, so that the airflow direction is changed in stages, the local resistance coefficient is reduced, the rolling friction replaces the sliding friction through the rolling balls 1406 in the first communicating straight pipe 1402 and the second communicating straight pipe 1405, which can reduce the contact resistance between the gas flow and the inner wall of the pipeline and reduce energy loss, the stress concentration caused by the pressure fluctuation in the pipeline is dispersed through the spiral gradient distribution of the micro-holes 1407, so that the fatigue life is prolonged, the cooperation of the rolling balls 1406 and the micro-holes 1407 can effectively reduce the airflow resistance and avoid resonance of the rolling balls 1406, the staggered arrangement of the rolling ball array and the hole groove can destroy the vortex generation, so that the boundary layer is more stable, the local high friction area is avoided, the stability of the laminar flow of the gas flow is optimized, and the adsorption and fixing effect of the insert body 9 is ensured.
[0021] The inner walls of the first communicating straight pipe 1402, the communicating elbow pipe 1403 and the second communicating straight pipe 1405 are provided with DLC coating, which can reduce gas flow resistance and effectively prevent the erosion and wear of the pipe wall by particulate matter. Embodiment two: In combination Figure 1 And Figure 2 As well as Figure 5As shown, by setting a communication mechanism 15 for gas communication conveying at one end of the connecting port 1401, a branch pipe 1 is installed on the communication mechanism 15, and a suction pipe 16 for adsorbing the insert body 9 and a blowing pipe 17 for facilitating the ejection of the die casting product 10 are fixedly communicated on the branch pipe 1, and gas valves are installed on the suction pipe 16 and the blowing pipe 17, so that the suction pipe 16 and the blowing pipe 17 can be effectively switched to adsorb and assist the ejection of the insert body 9.
[0022] In order to effectively filter the gas, a communication mechanism 15 is provided, which is communicated with the connecting port 1401 through a first port 1507, one side of the first port 1507 is fixedly connected with a fixed ring 1506, a coarse filter plate 1504 is installed in the fixed ring 1506, a connecting shell 1501 is installed on one side of the fixed ring 1506, a fine filter plate 1503 is installed in the connecting shell 1501, a second port 1502 is fixedly communicated at one end of the connecting shell 1501, the connecting shell 1501 and the fixed ring 1506 are connected through a bolt 1505, the second port 1502 is communicated with the branch pipe 1, large particle impurities are intercepted by the coarse filter plate 1504, and deep purification is performed by the fine filter plate 1503, so that the pollution impurities are intercepted step by step, and the combination of the two can reduce the turbulence intensity of the fluid, the connecting shell 1501 and the fixed ring 1506 can be easily disassembled and replaced through the bolt 1505, so that the maintenance period is effectively prolonged, raw material belts are installed at the connection between the connecting shell 1501 and the fixed ring 1506, the sealing effect of the device is improved, and the stability of the system vacuum degree is maintained.
[0023] Example three: In combination with Figure 1 , Figure 2 and Figure 3 as well as Figure 8 , one end of the second communication straight pipe 1405 is communicated and inserted with a bottom block 4, one side of the bottom block 4 is fixedly connected with a connecting piece 5, one side of the movable mold core 8 is provided with a clamping groove 11 for clamping the bottom block 4, the clamping groove 11 is provided with a through groove 12 matched with the connecting piece 5, the through groove 12 is provided with a mounting hole 13 matched with the supporting rod 701, the clamping groove 11 is provided with a mounting groove, the first screw 3 connected with the mounting groove is installed on the bottom block 4, the insert body 9 is placed in the adsorption position of the movable mold core 8 before closing the mold, the vacuum valve is opened to make the suction pipe 16 adsorb one face of the insert body 9, the mold is normally die-cast after closing, and the mold is opened after die casting, the vacuum valve is closed and the blowing valve is opened to make the blowing pipe 17 start to provide auxiliary air pressure to the insert body, one end of the connecting piece 5 is fixedly connected with an auxiliary assembly 7, and the auxiliary assembly 7 is used for effectively adsorbing the insert body 9.
[0024] In order to effectively adsorb the insert body 9, an auxiliary assembly 7 is provided, which is installed on one side of the connecting piece 5 through the second screw 6, the supporting rod 701, the airflow channel 702, the supporting block 703, the two through holes 704, the connecting ring 705, the abutting plate 706, the embedding groove 707, the plurality of air holes 708 and the ceramic gasket 709, and the gap between the airflow channel 702 and the mounting hole 13, the gap between the connecting piece 5 and the through slot 12, the gas accumulation in the connecting ring 705, the multi-point adsorption of the gas to the insert body 9 and the stability of the adsorption and fixation of the insert body 9 are realized.
[0025] It should be noted that the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.
[0026] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, alternatives and variations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A structure for vacuum fixing an insert for a die casting mold, comprising a movable mold frame (2) and a movable mold core (8) for a movable mold body of a die casting mold, characterized by: The side of the movable mold core (8) is provided with an insert body (9), one side of the insert body (9) is provided with a die casting product (10), and the movable mold frame (2) and the movable mold core (8) are provided with a suction mechanism (14) for adsorbing and positioning the insert body (9). The suction mechanism (14) comprises a connecting port (1401), one end of the connecting port (1401) is fixedly connected with a first communicating straight pipe (1402), one end of the first communicating straight pipe (1402) is provided with a communicating elbow pipe (1403) for reducing pollution of the vacuum channel, which is in the shape of "S" for reducing gas flow resistance and avoiding forming a single large elbow, and one end of the communicating elbow pipe (1403) is provided with a second communicating straight pipe (1405). The inner walls of the first communicating straight pipe (1402) and the second communicating straight pipe (1405) are movably provided with a plurality of groups of hexagonally arranged balls (1406) for reducing gas flow resistance, and the inner walls of the first communicating straight pipe (1402) and the second communicating straight pipe (1405) are provided with spiral gradient distributed micropores (1407), and the balls (1406) and the micropores (1407) are alternately arranged.
2. The insert vacuum fixing structure for a die casting mold according to claim 1, characterized in that: One end of the connecting port (1401) is provided with a communicating mechanism (15) for communicating and conveying gas, the communicating mechanism (15) is provided with a branch pipe (1), the branch pipe (1) is fixedly connected with a gas suction pipe (16) for adsorbing the insert body (9) and a gas blowing pipe (17) for facilitating ejection of the die casting product (10), and the gas suction pipe (16) and the gas blowing pipe (17) are provided with gas valves.
3. The insert vacuum fixing structure for a die casting mold according to claim 2, characterized in that: The communicating mechanism (15) comprises a first port (1507) connected with the connecting port (1401), one side of the first port (1507) is fixedly connected with a fixed ring (1506), the fixed ring (1506) is provided with a coarse filter plate (1504), one side of the fixed ring (1506) is provided with a connecting shell (1501), the inside of the connecting shell (1501) is provided with a fine filter plate (1503), one end of the connecting shell (1501) is fixedly connected with a second port (1502), the connecting shell (1501) and the fixed ring (1506) are connected through bolts (1505), and the second port (1502) is connected with the branch pipe (1).
4. The insert vacuum fixing structure for a die casting mold according to claim 1, characterized in that: One end of the second communicating straight pipe (1405) is connected with a bottom block (4), one side of the bottom block (4) is fixedly connected with a connecting piece (5), one end of the connecting piece (5) is fixedly connected with an auxiliary assembly (7) for effectively adsorbing the insert body (9).
5. The insert vacuum fixing structure for a die casting mold according to claim 4, characterized in that: The auxiliary assembly (7) includes a support rod (701) mounted on one side of the connecting piece (5) through the second screw (6), the support rod (701) is provided with an airflow channel (702), one end of the support rod (701) is fixedly connected with a support block (703), the support block (703) is provided with two through holes (704), one side of the support block (703) is mounted with a connecting ring (705) penetrating through the two through holes (704), one side of the connecting ring (705) is fixedly connected with a fit plate (706), the fit plate (706) is provided with an embedding groove (707), and a plurality of air holes (708) are arranged in the embedding groove (707) of the fit plate (706).
6. The insert vacuum fixing structure for a die casting mold according to claim 4, characterized in that: One side of the movable mold core (8) is provided with a clamping groove (11) for clamping the bottom block (4), the clamping groove (11) is provided with a through groove (12) for inserting the connecting piece (5), the through groove (12) is provided with an installation hole (13) for inserting the support rod (701), and the clamping groove (11) is provided with an installation groove, and the bottom block (4) is provided with the first screw (3) connected with the installation groove.
7. The insert vacuum fixing structure for a die casting mold according to claim 1, characterized by: The first communication straight pipe (1402) and the second communication straight pipe (1405) are provided with threaded grooves at one end close to the communication elbow pipe (1403), the communication elbow pipe (1403) is provided with nuts (1404) at both ends for connecting with the threaded grooves, and raw material belts are arranged in the two nuts (1404).
8. The insert vacuum fixing structure for a die casting mold according to claim 1, characterized by: The inner walls of the first communication straight pipe (1402), the communication elbow pipe (1403) and the second communication straight pipe (1405) are provided with DLC coating layers for reducing particle adhesion.